§ 6-2-35. CLOSURE PLAN.

(A)

A closure plan describes procedures for ending the storage of hazardous materials in each storage facility.

(B)

A closure plan must:

(1)

minimize the need for further maintenance;

(2)

minimize the threat to public health or safety from residual hazardous material;

(3)

describe the method by which the hazardous material is to be removed, disposed of, neutralized, or reused;

(4)

provide for the removal or decontamination of each storage facility; and

(5)

if appropriate, require that the applicant:

(a)

conduct a soil sample analysis and provide the director with all the sampling information, including the location of each sample, sampling method, test procedure, and test result; and

(b)

if there is an indication of soil contamination, demonstrate to the satisfaction of the director that the contamination is not a threat to public health or the environment.

(C)

A closure plan for an underground storage tank must include the procedures prescribed by this subsection.

(1)

For a tank closure in place, a permittee shall:

(a)

remove all flammable or combustible liquid from the tank and connecting lines;

(b)

disconnect each suction, inlet, gauge, or vent line;

(c)

completely fill the tank with concrete slurry or other material capable of filling all voids and hardening to a solid material, as approved by the director;

(d)

cap underground piping; and

(e)

request that the director conduct a tank closure inspection.

(2)

For a tank removal, a permittee shall:

(a)

remove all flammable or combustible liquid from the tank and connecting lines;

(b)

disconnect and cap or plug each suction, inlet, gauge, or vent line;

(c)

before the tank is removed, remove all ignitable vapor by:

(i)

filling the tank with carbon dioxide gas, including the use of dry ice at a rate of 15 pounds for each 1000 gallon capacity; or

(ii)

using another method approved by the director; and

(d)

request that the director conduct a tank removal inspection.

Source: 1992 Code Section 14-3-40; Ord. 031023-10; Ord. 031211-11.